(NewsNation Now) — Pope Francis congratulated president-elect Joe Biden on his victory. Biden, a lifelong Roman Catholic, spoke to the Pope on Thursday.

Biden’s transition team said in a statement that the president-elect thanked Francis for “extending blessings and congratulations and noted his appreciation.” He also saluted the pontiff’s “leadership in promoting peace, reconciliation, and the common bonds of humanity around the world.”

This comes as President Donald Trump refuses to concede. Trump claims — without evidence — that the election was stolen from him through acts of fraud.

Biden said he hopes to work with Francis on issues such as climate change, poverty and immigration.

News of the call came even as some Catholic bishops in the U.S. decline to acknowledge Biden’s victory and argue that the faithful should not back him because of his support for abortion rights.

On Tuesday, for example, Bishop Joseph Strickland of Tyler, Texas, tweeted that Biden and Vice President-elect Kamala Harris support “the slaughter of innocents” at any point during pregnancy.

Biden has said he accepts church doctrine about abortion on a personal level, but does not want to impose that belief on everyone.

Biden has had several phone calls this week with foreign leaders, including British Prime Minister Boris Johnson, French President Emmanuel Macron and German Chancellor Angela Merkel. They have congratulated him on winning and consider the election settled.

Having the pope on board, too, likely has special significance for Biden.

He is just the second Catholic to be elected president in U.S. history, and the first since John F. Kennedy. Biden speaks frequently and openly about the importance of faith in his life and attends Mass near his home in Wilmington, Delaware, nearly every week.

No matter their faith, American politicians often meet with the pope when traveling near Rome, though Francis declined to meet with Trump’s secretary of state, Mike Pompeo, in September, citing rules against such sit-downs during election periods. Francis last visited the U.S. in 2015.

Known for advocating for openness on issues like gay rights, the environment and religious tolerance, Francis has been embraced by some liberals as furthering their causes.

In its statement, the Biden transition team said the president-elect told the pontiff he would like to work together to further “a shared belief in the dignity and equality of all humankind on issues such as caring for the marginalized and the poor, addressing the crisis of climate change, and welcoming and integrating immigrants.”

The Vatican issued no statement confirming the call.